Patents by Inventor Hideyuki Shitara

Hideyuki Shitara has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10794966
    Abstract: A device includes a memory that stores a measurement-result of a first magnetization of a permanent-magnet corresponding to an external-magnetic field in an open-magnetic circuit; and a processor to divide the permanent-magnet into meshes, generate a function based on the measurement-result, the function indicating a second magnetization corresponding to the external-magnetic field in a closed-magnetic circuit, the function including a parameter having a value, calculate a diamagnetic-field corresponding to the external-magnetic field based on the second magnetization for each of the meshes, calculate a third magnetization of the permanent-magnet, calculate an average of the third magnetizations, calculate an error between the first magnetization and the calculated average, correct the value of the parameter, and repeat the calculation of the second magnetization, the diamagnetic-field, the third magnetizations, the average, and the error, and the correction of the value of the parameter until the error falls
    Type: Grant
    Filed: April 25, 2019
    Date of Patent: October 6, 2020
    Assignee: FUJITSU LIMITED
    Inventors: Jun Fujisaki, Atsushi Furuya, Hideyuki Shitara
  • Publication number: 20190377033
    Abstract: A device includes: a memory that stores a measurement-result of a first magnetization of a permanent-magnet corresponding to an external-magnetic field in an open-magnetic circuit; and a processor to divide the permanent-magnet into meshes, generate a function based on the measurement-result, the function indicating a second magnetization corresponding to the external-magnetic field in a closed-magnetic circuit, the function including a parameter having a value, calculate a diamagnetic-field corresponding to the external-magnetic field based on the second magnetization for each of the meshes, calculate a third magnetization of the permanent-magnet, calculate an average of the third magnetizations, calculate an error between the first magnetization and the calculated average, correct the value of the parameter, and repeat the calculation of the second magnetization, the diamagnetic-field, the third magnetizations, the average, and the error, and the correction of the value of the parameter until the error fall
    Type: Application
    Filed: April 25, 2019
    Publication date: December 12, 2019
    Applicant: FUJITSU LIMITED
    Inventors: Jun FUJISAKI, Atsushi Furuya, Hideyuki Shitara
  • Patent number: 10467184
    Abstract: A parallel processing apparatus includes: processors; and a network switch, wherein a first processor: generates divided matrix data by dividing the matrix data in such a manner that an overlapping portion is present with each other; transmits the divided matrix data to a second processor; generates first evaluation-value matrix data from the divided matrix data; transmits, to the second processor, first elements in a first overlapping portion of the first evaluation-value matrix data; receives, from the second processor, second elements of a second overlapping portion of second evaluation-value matrix data; calculates first added evaluation data by adding the second elements to the first elements; transmits the first added evaluation data to the second processor; receives, from the second processor, second added evaluation data; and calculates a first C point or a first F point based on the first evaluation-value matrix data which is updated using the second added evaluation data.
    Type: Grant
    Filed: May 31, 2018
    Date of Patent: November 5, 2019
    Assignee: FUJITSU LIMITED
    Inventors: Jun Fujisaki, Ryoji Tandokoro, Akira Hosoi, Hideyuki Shitara
  • Publication number: 20180349321
    Abstract: A parallel processing method for performing operation for each row data of matrix data and outputting solution data for each row, for solving matrix simultaneous linear equations, by using at least one of the Gauss-Seidel method and the SOR method using matrix data, the parallel operation method including: performing parallel operation on elements at a right side of diagonal elements of the matrix data for each of rows of the row data to calculate right-side operation result data; performing parallel operation on elements at a left side of the diagonal elements of the matrix data for each of rows of the row data using a solution data to calculate left-side operation result data; and calculating the solution data of the diagonal elements of the matrix data of the row data using the right-side operation result data and the left-side operation result data.
    Type: Application
    Filed: June 1, 2018
    Publication date: December 6, 2018
    Applicant: FUJITSU LIMITED
    Inventors: Hideyuki Shitara, Akira HOSOI, Ryoji TANDOKORO
  • Publication number: 20180349316
    Abstract: A parallel processing apparatus includes: processors; and a network switch, wherein a first processor: generates divided matrix data by dividing the matrix data in such a manner that an overlapping portion is present with each other; transmits the divided matrix data to a second processor; generates first evaluation-value matrix data from the divided matrix data; transmits, to the second processor, first elements in a first overlapping portion of the first evaluation-value matrix data; receives, from the second processor, second elements of a second overlapping portion of second evaluation-value matrix data; calculates first added evaluation data by adding the second elements to the first elements; transmits the first added evaluation data to the second processor; receives, from the second processor, second added evaluation data; and calculates a first C point or a first F point based on the first evaluation-value matrix data which is updated using the second added evaluation data.
    Type: Application
    Filed: May 31, 2018
    Publication date: December 6, 2018
    Applicant: FUJITSU LIMITED
    Inventors: Jun FUJISAKI, Ryoji TANDOKORO, Akira HOSOI, Hideyuki Shitara